Patterns
in
The Pascal's Triangle
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We can think of a pattern as a design or picture which repeats itself at
regular intervals.
The
Pascal's Triangle shown below is built up by using a special pattern.
*
To build up each row start with one and end with one.
* The numbers in between
are made up by adding the adjacent numbers above.
(eg. The 2 in the green box + the 1 in the blue box = the 3 in the yellow
box below.)
Now notice the interesting patterns formed by adding the numbers of each
row:
* Totals : {1, 2, 4, 8, 16,
32, 64, 128, 256 }
*
Each number is the previous number multiplied by two.
*
Or 2 to the power (0,1,2,3,4,5,6,7,8)
Find
the sequence of numbers within the triangle which are triangular numbers.
(visit number theory to find out about triangular numbers)
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Reading
Grids
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The diagram below consists of a grid which is
made up of squares, between a horizontal x axis, and a vertical y axis. We
can plot points on this grid by checking (circling) where the x axis meet
(intersect) the y axis.
Now observe the points plotted in the graph below, and also observe the
number patterns (eg (x + 1).
{(1,2)
x=1,
y=2}; {(2,2)
x=1+1,
y=2}; {(3,2)
x=2+1,
y=2} ... |
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